Hi Kasey!! I'm Robyn, nice to be playing with you! IM SO STOKED YOU BROUGHT IN FREAKING GLADOS LOL.
I've got two kids here, this is Jamie aka Furiosa from Mad Max. I can see her getting along with Addie as shes a bit of a tomboy too although the overly friendly thing would probably weird her out to begin with which could be fun to play out, lol. Jamie works at The Imp bar so if Addie is ever in there they would definitely know each other.
My other kids is urturnheather, Heather who is based off Bellatrix from Harry Potter. I can TOTALLY see her and Isabelle either really clashing or being great frenemies, lol. It's totally up to you!